WHILE IN THE PLANNING STAGE, I'M BEGINNING TO LAYOUT MY TRACK WITH RR TRACK. I CURRENTLY HAVE A LIONEL ZW-L, A LIONEL ZW PLUS A LIONEL KW AND TWO EXTRA STARTUP SET TRANSFORMERS. I PLAN ON RUNNING LEGACY AND CONVENTIONAL TRAINS SIMULTANEOUSLY. I BELIEVE I'LL NEED A AIU FOR SCENERY LIGHTING AND FIXTURES, YET I'M NOT SURE IF I'LL NEED AN ADDITIONAL TIU FOR TRACK WIRING. WILL A TIU BE NECESSARY AND HOW IS IT WIRED? WHAT ADDITIONAL INSTRUCTIONAL MATERIAL CAN I GET IN ASSISTING IN WIRING? AS USUAL I DEEPLY APPRECIATE ANY INFO GIVEN. THANKS ONCE AGAIN
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